DirecTV's rolling out its cellphone-enabled mobile DVR scheduling for its HR20-700 units. This means that you can hop on your cellphone and queue up American Idol (just about the only new show on right now) to watch when you get home. Other DirecTV models will follow in February. Hit the jump for a list of compatible… »1/18/08 3:00pm 1/18/08 3:00pm